Here are a couple of premium race oils from Maxima Racing Oils available here from Scoggin Dickey Parts Center.

Performance Break-In Oil

Maxima Racing Oils' Performance Break-In Oil is designed to ensure optimal performance for high-performance engines during the critical break-in period. This mineral-based oil features a high ZDDP formulation, providing excellent anti-wear protection with its high levels of zinc and phosphorus. The advanced 2X Zinc System activates at low temperatures, offering immediate and lasting protection. Ideal for engines with flat tappet camshafts, roller elements, and other high-performance applications, this oil has been dyno-proven to increase break-in efficiency. Following a recommended break-in procedure, including initial start-up, gradual load increase, and timely oil and filter changes, helps achieve maximum power output and engine longevity.

Full Synthetic Oil

Maxima Racing Oils' RS Full Synthetic Oil is a high-performance, triple-ester-based racing engine oil designed to deliver maximum performance and protection under extreme conditions. This fully synthetic oil combines unique esters with proprietary friction-reducing additives to ensure optimal power output and wear resistance. It includes advanced anti-wear and extreme pressure agents that protect engine components, especially in high-stress environments. The oil's shear-stable polymers maintain viscosity and film thickness, preserving engine power and longevity. Its surface-active chemistry aggressively attaches to engine surfaces, keeping them clean and reducing oxidation and wear. Suitable for all high-performance engines, including those with flat tappet cams, and compatible with all race fuels, this oil is ideal for racers and enthusiasts who demand the best from their engines.